3 Blackett Terrace, Sunderland, SR4 7XD

3 Blackett Terrace is a four-bedroom mid-terrace house in Sunderland (SR4 7XD). It has a recorded floor area of 108 m² (around 1163 sq ft), construction records dating it to 1930-1949 and council tax band A. The latest certificate (December 2024) shows a D (score 64), on the cusp of jumping into the C band. When first surveyed in September 2010 the rating was E, the property has climbed 1 band since. Between certificates, wall efficiency went from Very Poor to Poor, roof efficiency went from Very Poor to Good and window efficiency went from Very Poor to Average; while hot-water efficiency dropped from Very Good to Good and main heating dropped from Very Good to Good. The recommended improvements would push it to C (score 77).

A recent sale: £122,000 in June 2025. Across the public record there are 4 sales, relatively high churn for a single property. At 108 m² it's 18.7% larger than the typical home in the postcode (91 m² median across 9 EPCs). Across 2013–2025, sale prices on this property compounded at 3.3% per year. Today's modelled estimate of £138,000 is 13.1% above the 2025 sale price. On a £-per-square-foot basis, the last sale (£105/sq ft) was about 38.9% above the typical sold price in the postcode.